Article
Chemistry, Physical
Jinfeng Dong, Jun Pei, Kei Hayashi, Wataru Saito, Hezhang Li, Bowen Cai, Yuzuru Miyazaki, Jing-Feng Li
Summary: The addition of Ag2S in MnTe can significantly reduce lattice thermal conductivity, enhance electrical conductivity, and improve thermoelectric performance.
JOURNAL OF MATERIOMICS
(2021)
Article
Chemistry, Physical
Vikash Sharma, Divya Sharma, Ranu Bhatt, Pankaj K. Patro, Gunadhor Singh Okram
Summary: We report on the thermoelectric properties of nickel-doped Ag2-xNixTe nanostructures in a certain temperature range. The material undergoes a metal-insulator transition with increasing nickel doping concentration. The electrical resistivity and Seebeck coefficient show linear relationships with temperature. The material achieves higher thermoelectric coefficient through a sharp decrease in thermal conductivity associated with a structural phase transition.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
Okmin Park, Kyu Hyoung Lee, Sang Jeong Park, Se Woong Lee, Sang-il Kim
Summary: This study reports the improved thermoelectric properties of singly and lightly Pb-doped Sb2Te3 polycrystalline alloys, with increased carrier transport properties and electrical conductivity, decreased Seebeck coefficient, and reduced lattice thermal conductivity. The maximum thermoelectric figure of merit achieved is 0.97, which is the highest reported value for singly-doped Sb2Te3-based alloys. The maximum energy conversion efficiency is calculated to be 9.0% for a temperature difference of 350 K, surpassing other singly or codoped Sb2Te3 alloys.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Zhong-Zhen Luo, Songting Cai, Shiqiang Hao, Trevor P. Bailey, Yubo Luo, Wenjun Luo, Yan Yu, Ctirad Uher, Christopher Wolverton, Vinayak P. Dravid, Zhigang Zou, Qingyu Yan, Mercouri G. Kanatzidis
Summary: Zn plays a crucial role in enhancing the thermoelectric performance of Ga-doped PbTe by improving electronic transport properties and reducing lattice thermal conductivity, resulting in a significant increase in the figure of merit.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
Pradeep Kumar Sharma, T. D. Senguttuvan, V. K. Sharma, Pankaj Patro, Sujeet Chaudhary
Summary: In this study, the thermoelectric performance of PbTe compound was significantly improved through bismuth doping and dispersing SiC nanoparticles. Bismuth doping improved the electrical conductivity, while SiC nanoparticles regulated the Seebeck coefficient and suppressed the lattice thermal conductivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Riddhimoy Pathak, Debattam Sarkar, Kanishka Biswas
Summary: By co-doping Ag and Mg in SnTe, the TE performance can be significantly improved, enhancing the Seebeck coefficient and reducing thermal conductivity to achieve a high figure of merit at 865 K.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Pathan Sharief, Peyala Dharmaiah, Babu Madavali, Jun Woo Song, Jin Kyu Lee, Jong Hyeon Lee, Soon-Jik Hong
Summary: This study proposes a layered structure approach to improve the performance of thermoelectric materials by arranging different microstructure materials in a layered manner, optimizing the electrical conductivity and Seebeck coefficient, and thereby increasing the ZT value.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Huynh Thanh-Nam, Madavali Babu, Hayk H. Nersisyan, Hong Soon-Jik, Lee Jin-Kyu, Kim Ki-Buem, Song Gian, Lee Jong-Hyeon
Summary: This study presents a novel approach to improve the thermoelectric performance by introducing LaVO3 nanoparticles into the Cu0.07Bi0.5Sb1.5Te3 matrix, forming incoherent interfaces. The incoherent interfaces enhance the electrical conductivity and suppress the decrease in Seebeck coefficients. In addition, the incoherent interfaces reduce the thermal conductivity through enhanced phonon scattering mechanisms. The sample with 5 wt% LVO achieves a significant improvement in thermoelectric figure of merit.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Yitong Guo, Jingyang Du, Meihua Hu, Bin Wei, Taichao Su, Aiguo Zhou
Summary: In this study, the thermoelectric performance of Bi2Te3 was improved by incorporating Mo2C MXene, a two-dimensional material with moderate thermoelectric performance. The properties of Mo2C MXene were characterized, and it was found to be an N-type conductor with a Seebeck coefficient of -9.25 µV/K. The composite powders of Bi2Te3/Mo2C MXene were prepared and the resulting bulk samples showed enhanced thermoelectric properties, with a ZT value of 0.26 at 473 K, 78.6% higher than that of pure Bi2Te3. This is the first report on regulating thermoelectric performance using Mo2C MXene.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Xiaohe Zhang, Lin Sun, Peng Jiang, Xinhe Bao
Summary: This study successfully modulates the concentration of vacancies and grain size in oriented Cd-doped AgSbTe2 films, improving the electrical conductivity and power factor. The thermal conductivity of the AgSbTe2-based thin films is significantly reduced by the scattering induced by nanostructures and grain boundaries. The research demonstrates that the modulation of vacancies and microstructures is a feasible way to enhance the TE performance of AgSbTe2-based films.
MATERIALS TODAY ENERGY
(2023)
Article
Materials Science, Ceramics
Hao Zhao, Baoyin Xu, Zhanhui Ding, Yanfeng Xue, Jing Yang, Wei Zhao, Yongfeng Li, Bin Yao, Hongdong Li, Yucheng Lan
Summary: By fabricating porous structures, the thermal conductivity of Bismuth telluride was reduced, leading to improved thermoelectric properties. The study showed that porous (Bi,Sb)2Te3 materials with increased porosity and pore size had significantly lower thermal conductivity. This method of preparing porous thermoelectric materials has potential for enhancing thermoelectric performances.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Wan-Yu Lyu, Wei-Di Liu, Meng Li, Min Hong, Kai Guo, Jun Luo, Juanjuan Xing, Qiang Sun, Shengduo Xu, Jin Zou, Zhi-Gang Chen
Summary: This study comprehensively investigates the effect of rare earth element substitutions on the thermoelectric performance of GeTe. It is found that rare earth element substitutions enhance the Seebeck coefficient, reduce lattice thermal conductivity, and improve the dimensionless figure of merit. These findings indicate that rare earth elements can be effective dopants in GeTe to enhance its thermoelectric properties.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Zhuyu Feng, Yuhong Huang, Shujing Lin, Hongkuang Yuan, Hong Chen
Summary: The thermoelectric transport properties of Janus monolayers M2P2S3Se3 (M = Zn and Cd) were studied using first-principles based transport theory. The Zn2P2S3Se3 and Cd2P2S3Se3 monolayers were found to be indirect-gap semiconductors. The lower lattice thermal conductivity (kappa(l)) of Zn2P2S3Se3 compared to Cd2P2S3Se3 was attributed to the softer Zn-Se/S bonds, which caused more pronounced flat modes in the phonon dispersion. The carrier transport in both monolayers was dominated by polar optical phonon scattering, resulting in a significant decrease in electrical conductivity and power factor. The predicted figure of merit (zT) increased with temperature and reached optimal values of 0.86 and 0.30 at 1200 K for n-type Zn2P2S3Se3 and Cd2P2S3Se3 monolayers, respectively, at specific electron densities.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Junphil Hwang, Minju Lee, Byung-Kyu Yu, Mi-Kyung Han, Woochul Kim, Jungwon Kim, Rabih Al Rahal Al Orabi, Hongchao Wang, Somnath Acharya, Jiyong Kim, Yingshi Jin, Hwanjoo Park, Sujin Kim, So-Hyeon Yang, Sung-Jin Kim
Summary: A thermoelectric coated grain nanocomposite CuInTe2/SnTe was synthesized with eco-friendly elements, showing promising applications in the industrial field with significantly higher thermoelectric figure of merit.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Hua-Lu Zhuang, Haihua Hu, Jun Pei, Bin Su, Jing-Wei Li, Yilin Jiang, Zhanran Han, Jing-Feng Li
Summary: This study successfully improved the thermoelectric performance of (Bi,Sb)2Te3-based alloys by incorporating BiI3 and Zn as dopants. BiI3 introduced nanoscale pores that reduced thermal conductivity, while Zn improved electrical conductivity and prevented deterioration. The modulation of thermal and electrical transport properties significantly improved the ZT value.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Multidisciplinary Sciences
Chaval Sriwong, Chaiwat Phrompet, Wattana Tuichai, Attaphol Karaphun, Ken Kurosaki, Chesta Ruttanapun
SCIENTIFIC REPORTS
(2020)
Article
Physics, Applied
Sora-at Tanusilp, Yuji Ohishi, Hiroaki Muta, Ken Kurosaki
JOURNAL OF APPLIED PHYSICS
(2020)
Article
Materials Science, Multidisciplinary
Wanthana Silpawilawan, Sora-at Tanuslip, Yuji Ohishi, Hiroaki Muta, Ken Kurosaki
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2020)
Correction
Materials Science, Multidisciplinary
Shinsuke Yamanaka, Ken Kurosaki, Masahito Katayama, Jun Adachi, Masayoshi Uno, Takeshi Kuroishi, Masatoshi Yamasaki
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Physics, Applied
Jiahui Fu, Sora-at Tanusilp, Masaya Kumagai, Yuji Ohishi, Ken Kurosaki
Summary: The performance of a thermoelectric module is evaluated by the dimensionless figure of merit zT, while the thermal expansion of materials is also a crucial consideration. A large difference in thermal expansion rates between n- and p-type materials can result in device failures and performance reduction over time, highlighting the importance of both zT and material compatibility for practical applications.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Physics, Applied
Dulyawich Palaporn, Wiyada Mongkolthanaruk, Sora-at Tanusilp, Ken Kurosaki, Supree Pinitsoontorn
Summary: This study fabricated flexible thermoelectric nanocomposites from bacterial cellulose and Ag2Se via a simple and inexpensive method, and demonstrated their excellent thermoelectric performance through experimental results. Moreover, the material exhibited high flexibility and scalability, making it suitable for industrial applications of modern flexible thermoelectric devices.
APPLIED PHYSICS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Sora-at Tanusilp, Masaya Kumagai, Yuji Ohishi, Naoki Sadayori, Ken Kurosaki
Summary: The study shows that Sn(SbTe2)(2) has a large anharmonicity, leading to its low thermal conductivity, making it an excellent thermoelectric material with relatively high thermoelectric figure of merit.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2022)
Article
Chemistry, Physical
E. Kaewnuam, N. Wantana, S. Tanusilp, K. Kurosaki, P. Limkitjaroenporn, J. Kaewkhao
Summary: This study investigated the physical, structural, optical, shielding, thermal, and luminescent properties of WO3-Gd2O3-B2O3 glasses, with a focus on the impact of replacing WO3 with Gd2O3. The density of the glasses increased with higher concentrations of Gd2O3, while the optical absorption spectra showed absorbance in the ultraviolet and visible light regions. Despite a small degradation in shielding properties with increasing Gd2O3 content, the glass displayed strong photoluminescence and radioluminescence, making it a promising material for gamma-ray shielding and X-ray radiation detection applications at different temperatures.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Chemistry, Physical
Dulyawich Palaporn, Wiyada Mongkolthanaruk, Kajornsak Faungnawakij, Ken Kurosaki, Supree Pinitsoontorn
Summary: A flexible thermoelectric paper was successfully fabricated using bacterial cellulose/silver selenide nanocomposites. The in situ synthesis of silver selenide particles within the bacterial cellulose structure resulted in a homogeneous distribution of submicrosize particles, leading to enhanced thermoelectric properties. The hot-pressing process further improved the microstructure and increased the power factor of the paper.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Yuhei Kawajiri, Sora-at Tanusilp, Masaya Kumagai, Manabu Ishimaru, Yuji Ohishi, Junya Tanaka, Ken Kurosaki
Summary: By introducing gold (Au) into n-type Bi2Te3-xSex, the researchers successfully enhanced the thermoelectric properties, achieving a significant increase in zT value at room temperature and a 75% improvement, making it a promising candidate for assembling high-efficiency thermoelectric modules.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Sora-at Tanusilp, Masaya Kumagai, Yuji Ohishi, Hideki Furusawa, Motoomi Suwabe, Ken Kurosaki
Summary: In this study, a highly dense bulk sample of ZrW2O8 was synthesized using spark plasma sintering technique, and its thermal conductivity, mechanical properties, and other physical properties were investigated. It was found that ZrW2O8 exhibited unique thermal properties and could be potentially used in thermal management areas.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Physics, Applied
Akinori Nishide, Sora-at Tanusilp, Wataru Kowa, Mitsuharu Yashima, Akira Nambu, Jun Hayakawa, Yuji Ohishi, Hiroaki Muta, Hidekazu Mukuda, Ken Kurosaki
Summary: The research demonstrates that by controlling the valence fluctuation, ytterbium silicide-based thermoelectric materials can achieve a high Seebeck coefficient and extremely low resistivity. This makes it possible to harvest energy from a cold source.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Nuclear Science & Technology
Yifan Sun, Shiho Watanabe, Hiroaki Muta, Yuji Ohishi, Ken Kurosaki
Summary: Re-criticality analysis is crucial for safe retrieval and storage of the fuel debris at the Fukushima Dai-ichi Nuclear Power Plant. This study investigates the oxidation behavior and phase formation of Pu-doped and Gd-doped (U,Zr)O-2 solid solutions. Surrogate materials (CeO2) were used to mimic the behavior of PuO2. Analysis reveals the distribution and transformation of phases after oxidation.
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
(2023)
Review
Physics, Applied
Sora-at Tanusilp, Ken Kurosaki
Summary: Metal silicides, including the well-known Mg2Si, are promising candidates for thermoelectric applications due to their low toxicity and high stability. Rare-earth (RE) silicides, with their special behaviors of heavy fermion or mixed valence, exhibit unusually large Seebeck coefficient and thermoelectric power factor at low temperatures, making them potential advantages for low-temperature thermoelectric applications.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2023)
Article
Nuclear Science & Technology
Yifan Sun, Yuji Ohishi, Junya Higaki, Hiroaki Muta, Ken Kurosaki
Summary: Following the Fukushima Daiichi nuclear power plant accident, the development of accident tolerant fuels (ATFs) has become important in promoting nuclear safety. This study investigates the properties of non-radioactive LaB6 and CeB6 to estimate the potential properties of UB6, a promising ATF with little known information. The comparison with UO2, UB2, and UB4 helps determine whether the fabrication of UB6 under high pressure or with other dopants is worthwhile for ATF development.
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
(2023)
